Make the cilantro‑lime vinaigrette: in a small bowl or jar whisk together 1 tbsp extra‑virgin olive oil, 1 tbsp fresh lime juice, 1 tsp apple cider vinegar, 1 tsp honey (optional), 1/2 clove grated garlic, 1 tbsp chopped cilantro, 1/4 tsp kosher salt and a pinch of black pepper. Why: emulsifying the oil and acid with a little honey and garlic creates a bright, balanced dressing that coats the quinoa and binds the salad components. Taste and adjust — the lime should be bright but not overpowering.

Prep the vegetables and beans: halve the cherry tomatoes, finely mince the red onion and drain & rinse the black beans. Why: rinsing canned beans removes excess sodium and the canning liquid that can make the salad gummy; halving tomatoes and mincing onion ensures each bite has even texture and flavor distribution.

Warm the corn (if using frozen or canned): heat a small skillet over medium heat, add 1 tsp oil and the corn, a pinch of salt and 1/8 tsp ground cumin and a tiny pinch of smoked paprika (optional). Cook, stirring, 1–2 minutes until just warmed and aromatic. Why: warming the corn concentrates its sweetness and bloomed spices add an extra layer of flavor; quick warming prevents kernels from drying out.

Gently reheat the grilled shrimp: wipe a medium skillet clean, add 1 tsp olive oil and set over medium‑low heat. Add the shrimp and warm for 1–2 minutes per side — just until heated through; avoid high heat and long cooking because previously grilled shrimp will become rubbery if overcooked. Why: gentle reheating preserves the shrimp’s tender texture and brings back grilling aroma without drying them out.

Build and toss the salad: in a large bowl combine the cooked quinoa, warmed corn, black beans, halved cherry tomatoes, minced red onion and most of the chopped cilantro (reserve a little for garnish). Add 2/3 of the cilantro‑lime vinaigrette and gently toss until everything is evenly coated. Taste and add more dressing, up to the remaining amount, to reach a balance of brightness and moisture. Why: tossing quinoa with dressing while still slightly warm helps it absorb flavor; adding most (not all) the dressing lets you control final moisture and prevents a soggy salad.

Plate and finish: divide the tossed salad between two plates or bowls, arrange the warmed grilled shrimp on top, drizzle any remaining vinaigrette over the shrimp, sprinkle the remaining cilantro and a crack of fresh black pepper. Finish with a lime wedge on the side. Why: plating the shrimp on top keeps the texture distinction and the extra drizzle adds shine and flavor to the final presentation.

Serve immediately or chill briefly: this salad is excellent served warm or at room temperature; chilling for 15–20 minutes mellows flavors and lets them meld. Why: slightly chilled allows flavors to marry, but very cold dulls aromatics — serve within 2 hours for peak vibrancy.